A kind of anti-harmonic reactive-load compensation system of intelligence
Technical field
The utility model is related to a kind of dynamic voltage adjustment reactive power compensation technology, more particularly, to a kind of idle benefit of the anti-harmonic wave of intelligence
Repay system.
Background technology
China has become world energy sources production and consumption big country, and primary energy consumption figure occupies second place of the world, primary energy
Output occupies third place in the world.In general product energy consumption is high for China's Energy Situation, output value high energy consumption.Main energy-consuming product
Energy consumption of unit product is higher than developed country by 25~90%, and weighted average is high by 40% or so.Output value energy consumption is highest state in the world
One of family.
The energy saving policy of country is to adhere to that exploitation develops simultaneously with saving, and energy conservation priority, efficiency is this.Because electric energy is secondary energy
Source, it is very low that raw coal is converted to electric energy efficiency, can only reach 30%.If being converted to saving standard coal by electric energy is saved, often reduce
Electric energy loss 1%, equivalent to the consumption of coal 2.53% that debases the standard.Therefore, save electric energy for complete energy-saving index have it is great
Meaning.
National standardization administration committee and State Administration for Quality Supervision and Inspection and Quarantine promulgated on December 23rd, 2010
The new nation standard GB/T 25839-2010 of reactive power compensator《Zero transition procedue low voltage dynamic reactive power compensation device》
(enforcement of on May 1st, 2011), is practicable《Notice of the State Council with regard to further reinforcement fuel-economizing power saving operation》(promulgated by the State Council [2008]
No. 23), realize that " power factor of voltage levels electricity consumption enterprise of the transformer total capacity more than 100 kilovolt-amperes will reach
More than 0.98, the power factor of other electricity consumption enterprises will reach more than 0.9 " target provide strong technical guarantee, this
Attention degree of the country to reactive-load compensation is illustrated, but is occurred in that in the promotion and application of dynamic reactive compensation device
A difficult problem.Traditional reactive-load compensation equipment substantially uses purely mechanic switch or meets switch and opens as the switching of capacitor
Close, although simple structure but such reactive-load compensation equipment switching speed responsiveness is slow, produce during switching it is serious shove, do not compensate only for
Effect is bad to be also easy to cause potential safety hazard.Though and using the dynamic passive compensation equipment as fling-cut switch of electronic power switch
Can so solve problem above, but its complex structure, and volume is relatively large, so for some spatially limit larger
Project just cannot be adopted, such as outdoor comprehensive distribution box and box type transformer etc..Further for some transformation process, either
Remove former cabinet or transform in former cabinet and all exist installation difficulty, the big problem of difficulty of construction.
At present, there is space to limit for these or transform the big engineering of difficulty, in the urgent need to a kind of miniaturization on market
Electronic power switch type dynamic reactive compensation device, the utility model provides the anti-harmonic reactive-load compensation component of intelligence.
Utility model content
The utility model mainly solves the existing electronic power switch type dynamic passive compensation dress existing for prior art
Put that volume is big, baroque shortcoming and defect technical problem;There is provided a kind of with the anti-harmonic reactive-load compensation component of intelligence
Rational Design on Plane, it is complicated to load type, electronic power switch type dynamic reactive compensation device is used when needing, but to installing
Space has the engineering project of larger restriction to give effective solution again, can in all technicals such as its power factors
Ensure a kind of anti-harmonic reactive-load compensation system of intelligence of power supply safety while reaching.
What above-mentioned technical problem of the present utility model was mainly addressed by following technical proposals:
The anti-harmonic reactive-load compensation system of a kind of intelligence, it is characterised in that including a main reactive-load compensation component and some pairs
Reactive-load compensation component, the main reactive-load compensation component is identical with the structure of secondary reactive-load compensation component, including the letter being sequentially connected
Number collecting unit, control trigger element, electronic power switch switching unit, condenser reactance device power cell, protection location;Institute
State electronic power switch switching unit to be connected between transformer and load.
In a kind of above-mentioned anti-harmonic reactive-load compensation system of intelligence, the signal gathering unit is connected to transformer and electric current
On transformer TA, the secondary current signal of voltage and current transformer TA for gathering transformer is acquired, and will collection
Signal transmission gives control trigger element;The signal gathering unit adopts the signal picker of model GX-LDBZN/AD.
In a kind of above-mentioned anti-harmonic reactive-load compensation system of intelligence, the control trigger element adopts model GX-
The control trigger of LDBZN/KZ, according to the signal of signal gathering unit collection, selects the secondary reactive-load compensation component for needing input,
And trigger is sent to into the control trigger element in secondary reactive-load compensation component.
In a kind of above-mentioned anti-harmonic reactive-load compensation system of intelligence, the electronic power switch switching unit includes one pair
To controllable silicon, for turning on system, condenser reactance device power cell, protection location is accessed in load, and use aluminium alloy
Section bar fan heat and AC220V AC blower fans carry out fan heat treatment to bidirectional triode thyristor.
In a kind of above-mentioned anti-harmonic reactive-load compensation system of intelligence, the condenser reactance device power cell includes three-phase electricity
Container and the reactor concatenated with three-phase capacitor;For carrying out reactive-load compensation to system.
In a kind of above-mentioned anti-harmonic reactive-load compensation system of intelligence, the protection location includes breaker, overvoltage protection
Device, temperature controller;Wherein breaker is connected with the output end of bidirectional triode thyristor in electronic power switch switching unit;Cross electricity
Pressure protector is connected in parallel on two-way in electronic power switch switching unit using the overvoltage protection device of model GX-LDBZN/ZR
Silicon controlled input and output end;Temperature controller adopts the temperature controller of model GX-LDBZN/WK, with power electronics
AC220V AC blower fans are connected in switch on-off unit.
Therefore, the utility model has the advantage that:1st, compensation effect is good:In real time dynamic carries out reactive-load compensation, instantaneous work(
Rate factor can reach more than 0.95;2nd, switching shoves little:Using electronic power switch as fling-cut switch, switch in conducting and
The impact of shoving caused in turn off process is little;3rd, compact conformation small volume:By the design of reasonably optimizing so as to whole meeting
While all technical indicators of cabinet type electric power electronic on-off-type dynamic reactive compensation device, it is excessive to overcome its volume, structure
Complicated problem;4th, combine flexible:Flexibly enter to compensate the packet of component according to compensation total capacity so as to can compensate with Large Copacity
While ensure the high accuracy of compensation, and compensation component can arbitrarily be increased according to the increase of load.
Description of the drawings
Fig. 1 is the anti-harmonic reactive-load compensation modular construction block diagram of intelligence.
Fig. 2 is the anti-harmonic reactive-load compensation component instance system wiring schematic diagram of intelligence.
Specific embodiment
Below by embodiment, and accompanying drawing is combined, the technical solution of the utility model is described in further detail.
Embodiment:
First, hardware chaining structure of the present utility model is introduced first:
As shown in figure 1, the anti-harmonic reactive-load compensation component of intelligence includes signal gathering unit 10, control trigger element 20, electricity
Sub- electronic switch switching unit 30, condenser reactance device power cell 40, protection location 50.
Signal gathering unit 10 is responsible for three-phase voltage, the three-phase current of collection network system, and information real-time Transmission is given
Control trigger element 20;Control trigger element 20 is by the three-phase current transmitted to signal gathering unit 10, the fortune of three-phase voltage
Point counting is analysed, and calculates the no-power vacancy between electrical network realtime power factor and sets target power factor, then trigger is passed
It is defeated by electronic power switch switching unit 30;Electronic power switch switching unit 30 is according to the trigger for receiving to electric power electricity
Son switch is turned on and turned off, so as to realize the input to condenser reactance device power cell 40 and excision;Protection location 50
To controlling trigger element 20, electronic switch on-off unit 30, condenser reactance device power cell during component operation
40 are protected in real time.
2nd, single-phase elementary diagram of the present utility model is described below
As shown in Fig. 2 the utilization for the anti-harmonic reactive-load compensation component of intelligence in actually compensation, reactive-load compensation in Fig. 2 sets
Meter total capacity is 150kvar, must not be higher than the 10% of compensation total capacity according to the requirement single capacity in step 4, so first
Group is set to the component of 15kvar from capacity, and arranging 2 groups of 15kvar components makes compensation component to extend compensation with alternate run
The service life of component, other assemblies are by the related request of step 4 from the component that capacity is 30kvar.
1st, signal gathering unit 10
Due to being multicompartment parallel running, so operation program can first select a component to run as main frame, here will
ZN1 component definitions are main frame, and ZN2, ZN3, ZN4, ZN5, ZN6 component is slave.The signal gathering unit 10 of ZN1 will be to transformer
Voltage and the secondary current signal of current transformer TA be acquired, and be transferred to host controlled trigger B1.
2nd, trigger element 20 is controlled
Host controlled trigger B1 carries out signal data analysis, calculates between system power factor and target power factor
No-power vacancy after select need input compensation from thermomechanical components, then send instructions to correspondence and touch from the control of thermomechanical components
Send out device B2, B3, B4, B5, B6.
3rd, electronic power switch switching unit 30
The electronic power switch of each component is respectively K1, K2, K3, K4, K5, K6, is being connected to respective component control trigger
Electronic power switch is turned on after the trigger for sending.
4th, condenser reactance device power cell 40
Component power part is by capacitor C1, C2, C3, C4, C5, C6 and reactor L1, L2, L3, L4, L5, L6 series connection group
Into, it is connected to the grid after electronic power switch conducting, reactive-load compensation is carried out to system.
5th, protection location 50
The protection such as exit by breaker, overvoltage protection device, temperature controller, phase shortage, short circuit, failure to constitute, realize electricity
The protection of power electronic switch, reactor, capacitor and control trigger.
Specific embodiment described herein is only explanation for example to the utility model spirit.The utility model institute
Category those skilled in the art can make various modifications to described specific embodiment or supplement or using similar
Mode substitute, but without departing from spirit of the present utility model or surmount scope defined in appended claims.